install data files to arch dependent appdata directory.

setup.py

@@ -4,6 +4,7 @@
 
 from distutils.core import setup
 from lib.version import ELECTRUM_VERSION as version
+import lib.util as util
 import os, sys, platform
 if sys.version_info[:3] < (2,6,0):
     print "Electrum requires Python version >= 2.6.0... exiting"
@@ -16,13 +17,24 @@ if platform.system() != 'Windows' and platform.system() != 'Darwin':
     data_files += [
         ('/usr/share/applications/',['electrum.desktop']),
         ('/usr/share/app-install/icons/',['electrum.png'])
-        ]
+    ]
     if not os.path.exists('locale'):
         os.mkdir('locale')
     for lang in os.listdir('locale'):
         if os.path.exists('locale/%s/LC_MESSAGES/electrum.mo'%lang):
             data_files.append(  ('/usr/share/locale/%s/LC_MESSAGES'%lang, ['locale/%s/LC_MESSAGES/electrum.mo'%lang]) )
 
+data_files += [
+    (util.appdata_dir(), ["data/background.png", "data/style.css"]),
+    (os.path.join(util.appdata_dir(), "icons"), [
+        "data/icons/accounts.png",
+        "data/icons/confirmed.png",
+        "data/icons/expand.png",
+        "data/icons/interact.png",
+        "data/icons/unconfirmed.png"
+    ])
+]
+
 setup(name = "Electrum",
     version = version,
     install_requires = ['slowaes','ecdsa'],